backlight: set backlight type and max_brightness before backlights are registered

Since commit a19a6ee "backlight: Allow properties to be passed at
registration" and commit bb7ca74 "backlight: add backlight type", we can
set backlight type and max_brightness before backlights are registered.
Some newly added drivers did not set it properly, let's fix it.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Donghwa Lee <dh09.lee@samsung.com>
Cc: InKi Dae <inki.dae@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c
index 62bcde3c97f..5934655eb1f 100644
--- a/drivers/video/backlight/ld9040.c
+++ b/drivers/video/backlight/ld9040.c
@@ -668,6 +668,7 @@ static int ld9040_probe(struct spi_device *spi)
         struct ld9040 *lcd = NULL;
         struct lcd_device *ld = NULL;
         struct backlight_device *bd = NULL;
+        struct backlight_properties props;
 
         lcd = kzalloc(sizeof(struct ld9040), GFP_KERNEL);
         if (!lcd)
@@ -699,14 +700,17 @@ static int ld9040_probe(struct spi_device *spi)
 
         lcd->ld = ld;
 
+        memset(&props, 0, sizeof(struct backlight_properties));
+        props.type = BACKLIGHT_RAW;
+        props.max_brightness = MAX_BRIGHTNESS;
+
         bd = backlight_device_register("ld9040-bl", &spi->dev,
-                lcd, &ld9040_backlight_ops, NULL);
+                lcd, &ld9040_backlight_ops, &props);
         if (IS_ERR(bd)) {
                 ret = PTR_ERR(bd);
                 goto out_unregister_lcd;
         }
 
-        bd->props.max_brightness = MAX_BRIGHTNESS;
         bd->props.brightness = MAX_BRIGHTNESS;
         lcd->bd = bd;